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hep-lat2025
Electric Polarizability of Charged Kaons from Lattice QCD Four-Point Functions
Shayan Nadeem, Walter Wilcox, Frank X. Lee
We study the electric polarizability of a charged kaon from four-point functions in lattice QCD as an alternative to the background field method. Lattice four-point correlation fun…
hep-lat2024
Neutral pion polarizabilities from four-point functions in lattice QCD
Frank X. Lee, Walter Wilcox, Andrei Alexandru +2
We report a proof-of-principle lattice QCD simulation of the electric and magnetic polarizabilities for a neutral pion in the four-point function method. The results are based on t…
hep-lat2024
Multipolynomial Monte Carlo Trace Estimation
Paul Lashomb, Ronald B. Morgan, Travis Whyte +1
In lattice QCD the calculation of disconnected quark loops from the trace of the inverse quark matrix has large noise variance. A multilevel Monte Carlo method is proposed for this…